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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 7: 1. Television=-..very popular since the 1950s. * 0 điểm is was has been have been

Toán Lớp 7: 1. Television………………very popular since the 1950s. *
0 điểm
is
was
has been
have been

Comments ( 2 )

  1. ⇒ Chọn C. has been
    _ “Since” ⇒ Hiện tại hoàn thành
    _ “Televison” là số ít ⇒ Dùng “has”
    _ Cấu trúc :
    +) S + have/has + P2
    -) S + have/has + not + P2
    ?) Have/Has + S + P2 ?

  2. 1. Television………………very popular since the 1950s.
    ⇒ has been ( thì hiện tại hoàn thành  )

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222-9+11+12:2*14+14 = ? ( )